12081492870864 has 40 divisors (see below), whose sum is σ = 31341111242880. Its totient is φ = 4010314226688.

The previous prime is 12081492870829. The next prime is 12081492870877. The reversal of 12081492870864 is 46807829418021.

It is a super-3 number, since 3×12081492870864³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12081492870798 and 12081492870807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526552897 + ... + 526575840.

It is an arithmetic number, because the mean of its divisors is an integer number (783527781072).

Almost surely, 2^{12081492870864} is an apocalyptic number.

It is an amenable number.

12081492870864 is an abundant number, since it is smaller than the sum of its proper divisors (19259618372016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12081492870864 is a wasteful number, since it uses less digits than its factorization.

12081492870864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053128987 (or 1053128981 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 60.

The spelling of 12081492870864 in words is "twelve trillion, eighty-one billion, four hundred ninety-two million, eight hundred seventy thousand, eight hundred sixty-four".